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Cannot find a primary authoritative dns server

This is my first time asking a question. This forum is awesome.  I mostly find answers by looking through previous posts, but this one has the best of me.  I think I have read and tried all the solutions on this problem.

netdiag gives me this error:

  [WARNING] Cannot find a primary authoritative DNS server for the name
            '____.com.'. [ERROR_TIMEOUT]
            The name '___________.com.' may not be registered in DNS.

when I ran netdiag /v  I also found this:
DNS test . . . . . . . . . . . . . : Failed
      Interface {EBD23B86-4C6D-4FD0-A775-E6DF851FA7A8}
        DNS Domain:
        DNS Servers:

As you can see, the DNS domain is blank, ip is

I have deleted the _msdcs.domain.com and repopulated, did not help

It seems that the dns server itself is not properly registered in active directory.

I have also disabled IPv6

I appreciate your help
1 Solution
have your tried running
dcdiag /fix
demurrerAuthor Commented:
yes, same problem
Chris DentPowerShell DeveloperCommented:

ipconfig /all and verify the DNS servers listed there, disable any unused interfaces. Is {EBD23B86-4C6D-4FD0-A775-E6DF851FA7A8} one of those?

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Nice catch Chris, with that multihomed DC.
demurrerAuthor Commented:
Chris, no interfaces with {EBD23B86-4C6D-4FD0-A775-E6DF851FA7A8} , but I will try disabling others.  There's Toredo Tunneling and Automatic Tunneling.  Not sure how to disable but Ill try..
demurrerAuthor Commented:
wow, I almost can't believe it.  Thank you Chris.  You got me on the right track.  I completely removed IPv6 protocol, which removed the 2 tunneling devices I mentioned earlier.  No more DNS issue.  I had previously unchecked IPv6, but removing it completely fixed the problem.  

I spent so much time trying to figure this one out.

thank you!
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